- •Dealing with statistics вивчаючи статистику
- •Fundamentals of Statistics
- •Read and translate the text: What is statistics?
- •Complete the following sentences:
- •Present tenses Present Simple. Present Continuous. State Verbs
- •2. Fill in the gaps with the correct form of the verbs in brackets.
- •3. Fill in the gaps with the verbs in the box in the correct present tense.
- •Look at the following extracts. There are six incorrect verbs. Find and correct them.
- •Unit 2. A very brief history of statistics.
- •Practice the pronunciation of the words:
- •Read and memorize the following words and word combinations. Use them in the sentences. Pay attention to the prepositions.
- •Read and translate the following sentences:
- •Read and translate the text:
- •Why you need to use statistics
- •Past tenses 1 Past Simple. Past Continuous. Used to/ Would.
- •1. Fill in the gaps in this model answer with verbs from the box in the past simple.
- •3 A teacher and student are talking about local customs. Fill in the gaps with the verbs in brackets in the correct form. Use would or used to where possible.
- •Unit 3. Variable and constant. Discrete and continuous.
- •Practice the pronunciation of the words:
- •Read and memorize the following words. Use them in the sentences.
- •Read and translate the following sentences:
- •Read and translate the texts:
- •Variable and constant
- •Discrete and continuous
- •5. Write out the definitions from the texts:
- •6. Complete the following sentences:
- •7. Ask 10 general questions to the text.
- •8. Give examples of:
- •Present perfect Present Perfect. Present Perfect Continuous
- •1 Tick (/) the correct underlined verbs, and correct the verbs that are wrong.
- •3. Underline the correct form of the verbs.
- •4 Fill in the gaps with a verb from the box in the present perfect simple or present perfect continuous. You will need to use some verbs more than once.
- •Unit 4. Cardinal and ordinal. Population and sample.
- •1. Practice the pronunciation of the words:
- •Read and memorize the following words. Use them in the sentences.
- •Read and translate the following sentences:
- •Read and translate the texts:
- •5. Write out the definitions out of the texts:
- •6. Complete the following sentences:
- •7. Ask 10 general questions to the text.
- •8. Give examples of:
- •9. Summarize the contents of the text in 10 – 15 sentences. Use the expressions:
- •Past tenses іі Past Perfect. Past Perfect Continuous.
- •1 Fill in the gaps with the past perfect simple of the verbs in brackets in the positive or negative.
- •2 Complete the report with the past simple or past perfect simple of the verbs in brackets
- •Unit 5. Misuses of statistics.
- •Practice the pronunciation of the words:
- •Read and memorize the following words. Use them in the sentences.
- •Read and translate the following sentences:
- •Read and translate the texts:
- •Complete the following sentences:
- •6. Ask 10 general questions to the text.
- •7. Answer the following questions:
- •Sum up all the information about statistics and discuss this topic with your group-mates according to the plan:
- •Future 1 Plans, Intentions and Predictions: Present Continuous; Going to; Will
- •Fill in the gaps in the second half of this model answer with phrases from the box.
- •2 Fill in the gaps with the present continuous or will-future form of the verbs in brackets.
- •Unit 6. Basic statistical vocabulary.
- •1. Practice the pronunciation of the words:
- •2. Read, translate and memorize the following words. Use them in the sentences.
- •Read and translate the following sentences:
- •Read and translate the texts:
- •Variables and data
- •Complete the following sentences:
- •6. Ask 10 general questions to the text.
- •7. Answer the following questions:
- •8. Write out the definitions of variables from the texts:
- •Give examples of these variables.
- •Summarize the contents of the text in 10 – 15 sentences. Use the expressions:
- •Don’t put all your data into one basket!
- •Future 2 Present Simple; be about to; future continuous; future perfect
- •The following chart shows the results of a class survey about planned activities for Saturday afternoon. Complete the sentences using the future continuous tense.
- •Read the following projections about the future population of Australia
- •3 In six of these sentences there is a verb in the wrong tense. Underline each mistake and write the correction.
- •4 Fill in the gaps with a future form from this unit and the verbs in brackets.
- •Test Practice. Academic Writing Task 1
- •Test Yourself (Unit 1–6)
- •Unit 7. Sources of Data.
- •Practice the pronunciation of the words:
- •Read and memorize the following words. Use them in the sentences.
- •Read and translate the following sentences:
- •Read and translate the text:
- •Complete the following sentences:
- •Ask 10 general questions to the text.
- •Answer the following questions:
- •Agree or disagree with the following statements. Use the expressions:
- •Get ready to speak about sources of data. Use the following phrases:
- •Adjectives and Adverbs Describing things; adding information about manner, place, time, frequency and intensity.
- •1 Read the test task and the students' responses. Some of the adjectives they used are underlined. If they are used correctly, put a tick (/). If they are wrong, write the correct answer.
- •2 Write the missing adjectives and adverbs.
- •3 Match the beginnings (1-8) and the endings (a-h) of the sentences. Join them by adding a suitable -ed or -ing adjective formed from one of the verbs in the box. Use each verb once.
- •4 Underline the correct words.
- •Unit 8. Presenting Categorical Data.
- •1. Practice the pronunciation of the words:
- •2. Read and memorize the following words. Use them in the sentences.
- •3. Read and translate the following sentences:
- •4. Read and translate the text:
- •Column Variable
- •5. Complete the following sentences:
- •6. Ask 10 general questions to the text.
- •7 Answer the following questions:
- •8. Agree or disagree with the following statements. Use the expressions:
- •9. Get ready to speak about “Presenting Numerical Data”. Use the following phrases:
- •Comparing things Comparative and superlative adjectives and adverbs; other ways of comparing
- •1 Fill in the gaps with the adjectives in the box in a comparative or superlative form.
- •2 Fill in the gaps with the words in brackets in a comparative or superlative form.
- •3 Fill in the gaps in the model answer below. Use one word in each gap.
- •Academic Writing Task 2
- •Unit 9. Analysing and Presenting Data.
- •1. Practice the pronunciation of the words:
- •Read and memorize the following words. Use them in the sentences.
- •3. Read and translate the following sentences:
- •4. Read and translate the texts:
- •5. Complete the following sentences:
- •6. Ask 10 general questions to the text.
- •7. Answer the following questions:
- •Give examples of graphs you know. Modals I
- •I Obligation and necessity; suggestion and advice; adverbs
- •2 Fill in the gaps below with the correct form of (not) have to, must, (not) need or should.
- •3 Read the extract. Decide if the underlined phrases are correct or not. Tick (✓) them if they are right and correct them if they are wrong.
- •4 Fill in the gaps with the correct form of (not) have to, ought to or must(n't) and the verbs in brackets.
- •Modals II Ability; possibility; alternatives to modals
- •5 Underline the most suitable words. Sometimes both options are possible
- •6 Tick (✓) the sentence, a or b, which best matches the sentence on the right.
- •7 Replace the underlined phrases with a suitable past modal phrase.
- •Unit 10. Describing data.
- •Practice the pronunciation of the words:
- •Read and memorize the following words. Use them in the sentences.
- •3. Read and translate the following sentences:
- •4. Read and translate the texts:
- •Inferring differences and relationships
- •5. Complete the following sentences:
- •6. Ask 10 general questions to the text.
- •7. Answer the following questions:
- •11. Changes can also be described in more detail by modifying a verb with an adverb. Using a verb from box a and an adverb from box b make sentences describing the changes represented on the graph.
- •12. Read the following summary of the Magic Music Downloads. The expressions in bold refer to time and amount. Underline the expression that you think is correct according to the graph.
- •Write a brief summary of your own graph using the language you have covered in this lesson.
- •14. Extension. (If you have time in this lesson or for the beginning of the next lesson)
- •Up close and personal: Survey results
- •If your data are categorical:
- •If your data are numerical:
- •Reported speech Tense changes; time references; reporting questions; reporting verbs
- •1 Here is a conversation between Tanya and her teacher.
- •2 Underline the correct verb in each sentence.
- •3 Correct the mistakes in these sentences.
- •4 Report each of the sentences below using a verb from the box. Remember that you do not need to report the original words exactly.
- •Uniit 11 categorical data in tables and graphs
- •Practice the pronunciation of the words:
- •Memorize the following words and word combinations. Use them in the sentences. Pay attention to the prepositions.
- •Read and translate the following sentences:
- •Read and translate the text:
- •Complete the following sentences:
- •Ask 10 general questions to the text.
- •Answer the following questions:
- •Get ready to speak about presenting categorical data using tables. Draw the examples of a frequency, a cross-classification table and graphs to support your talk.
- •1 Fill in the gaps with the correct form of the verbs in brackets.
- •2 Underline the correct form of the verbs.
- •4 Fill in the gaps in the letter using both of the verbs in brackets.
- •Unit 12 numerical data in tables and graphs
- •1. Practice the pronunciation of the words:
- •2. Memorize the following words and word combinations. Use them in the sentences. Pay attention to the prepositions.
- •3. Read and translate the following sentences:
- •4. Read and translate the text:
- •Complete the following sentences:
- •6. Ask 10 disjunctive questions to the text.
- •7. Answer the following questions:
- •8. Get ready to speak about the graphs. Use the following phrases:
- •Likelihood based on conditions
- •I. Zero, first and second conditionals; other ways to introduce a condition
- •2 Fill in the gaps in the extracts below using the verbs in brackets in the correct form.
- •3 Decide if the underlined verbs are correct or not. Tick (✓) them if they are right and correct them if they are wrong
- •4 Underline the correct words.
- •II Third conditional; mixed conditionals; wishes and regrets; should(n’t) have
- •1 Fill in the gaps with the correct form of the verbs in brackets.
- •2 Read about two scientific discoveries that were made due to chance and complete the sentences.
- •3 Find and correct the mistakes in the sentences below.
- •Test Practice. Academic Reading
- •Academic Writing Task 3
- •Test Yourself (Units 7 – 12)
- •Keys to grammar exercises удалено Grammar references
- •Future continuous
- •Future perfect
- •Future perfect continuous
- •1 Adjectives
- •2 Adverbs
- •Irregular adverbs
- •Reported Statements
- •Reported Questions
- •Reported Orders
- •Reported Commands, Requests, Suggestions, etc
- •Difference in meaning between the to-infinitive and -ing form
- •The infinitive without to (also called bare infinitive) is used:
- •Conditionals:Types 2 and 3
- •Other words to introduce a condition
- •In case
- •Mixed conditionals
- •Irregular verbs
- •Glossary
- •Key vocabulary index
- •References
- •Content
4. Read and translate the text:
Although it would be possible to present numerical data where the data values are discrete in a table, this is unlikely to be practicable – the large number of different values would make the table too large to interpret easily or indeed to fit on a page! To overcome this it is necessary to group the values for each variable into categories. This is always necessary for continuous data. Once you have grouped the data for your numerical variables they have become categorical variables. This means you can present the data they contain as frequency tables and cross-tabulations, as discussed for categorical data.
Presenting numerical data using graphs. There is a wide range of graphs that are suitable for presenting numerical data. Those most frequently used are summarised in Table 12.1 along with when to use them. Those shaded in Table 12.1 are those graphs you are most likely to use. You will probably have less use for those graphs not shaded.
Table 12.1 Graphs for presenting numerical data and when to use them
Graph
|
Use when you want to present data to |
Histogram |
show frequency of occurrence and emphasise highest and lowest categories for one variable show the distribution of categories for one variable (frequencies are normally displayed vertically and categories horizontally and the data values will need to be grouped into categories) |
Line graph
|
show the trend for one variable over time |
Multiple line graph
|
compare the trends for two or more variables over time
|
Scatter graph |
show the relationship between the individual cases for two variables |
Frequency polygon
|
show frequency of occurrence and emphasise highest and lowest categories for one variable show the distribution of categories for one variable (frequencies are normally displayed vertically and categories horizontally, and the data values will need to be grouped into categories) |
Box plot |
show the distribution of values for one variable and present statistics such as the median, quartiles, range and inter-quartile range |
Multiple box plot
|
compare the distribution of values for two or more variables and present statistics such as the median, quartiles, range and inter-quartile range |
Histograms are the numerical data equivalent of bar charts. They are especially useful when you want to emphasise the highest and lowest values or the distribution of values for a variable. Before drawing your histogram you will nearly always need to group your data into a series of groups along a continuous scale. This means you will need to:
(i) decide on the classes into which to group the variable’s data;
(ii) create a frequency table recording the number of times values occur in each of these classes;
(iii) draw your histogram using a bar to represent the frequency with which values occur in a class.
The main differences between the appearance of a bar chart and a /histogram are as follows:
The horizontal axis has a continuous scale, and is represented by the bars of data being joined together.
The area, not the height, of each bar represents the frequency. This is extremely important if you are using classes of different sizes.
Line graphs should be used when you want to present what is happening over time, the trend being represented by the line. On line graphs, the horizontal axis is used to represent time, and the vertical axis the frequency, the data values for the time periods being joined by a line.
When you want to compare trends for two or more variables over time, you just plot an additional line for each additional variable.
Scatter graphs, also called scatter plots, are used to show the relationship between two numerical variables. Where you have an independent and a dependent variable, the horizontal axis is used to represent the independent variable (the one that is the variable manipulated (altered or changed) to find out its effect on another variable) and the vertical axis to represent the dependent variable (the one that is measured in response to the manipulation of the independent variable). However, you can use scatter plots to show relationships where you do not know which variable is dependent and which is independent. Each case’s position on the graph is plotted against the two variables, normally being represented by a cross. The strength of any relationship is represented by the closeness of the crosses plotted to an imaginary straight line.
Final comments. You will no doubt have noticed that we have not included any three-dimensional graphs in this chapter. This is because we believe that they do not present data as clearly as two-dimensional graphs.